Intel Arc B770 vs NVIDIA RTX 500 Mobile Ada Generation Comparison

The Verdict

The Intel Arc B770 and NVIDIA RTX 500 Mobile Ada Generation occupy opposite ends of the GPU spectrum. The Arc B770 is a desktop-oriented, high-throughput part built for maximum compute and rasterization work, while the RTX 500 Mobile is a low-power, integrated-class mobile chip designed for efficiency and portability. Based strictly on the recorded specifications, the Arc B770 is the clear choice for anyone needing raw performance, high memory capacity, and extensive display connectivity. The RTX 500 Mobile is the option for constrained, power-sensitive mobile environments where its 35 W thermal envelope and compact IGP form factor are mandatory. The data shows the Arc B770 offers 19.66 TFLOPS of FP32 compute versus 8.294 TFLOPS for the RTX 500 Mobile, a 2.37x advantage. In memory, the Arc B770 provides 16 GB of GDDR6 on a 256-bit bus delivering 512.0 GB/s, compared to 4 GB on a 64-bit bus at 128.0 GB/s. There is no benchmark score overlap, but the architectural and specification gaps make the choice straightforward: the Arc B770 for performance, the RTX 500 Mobile for mobility and low power draw.

Architecture Differences

The two GPUs are built on entirely different architectures from different vendors. The Intel Arc B770 uses the Xe2-HPG architecture (generation Battlemage, Arc 7) on a 5 nm TSMC process, with a die size of 368 mm². The NVIDIA RTX 500 Mobile uses Ada Lovelace on the same 5 nm TSMC node but with a much smaller die at 159 mm². The Intel chip packs 4096 shading units, 256 texture mapping units, and 128 ROPs. The NVIDIA chip has 2048 shading units, 64 TMUs, and 32 ROPs. This means the Arc B770 has double the shader count and four times the ROP count.

Ray tracing hardware differs significantly. The Arc B770 has 32 dedicated RT cores, while the RTX 500 Mobile has 16 RT cores. For tensor or AI acceleration, the RTX 500 Mobile includes 64 tensor cores, while the Arc B770 lists no tensor core count in the database. The Intel GPU also has a distinct FP16 capability: 39.32 TFLOPS with a 2:1 ratio, while the NVIDIA chip delivers 8.294 TFLOPS at a 1:1 ratio. This indicates the Arc B770 can process half-precision workloads at double the rate of its FP32 throughput, a feature absent in the RTX 500 Mobile.

Memory architecture is another major divider. The Arc B770 uses 16 GB of GDDR6 on a 256-bit interface, yielding 512.0 GB/s bandwidth. The RTX 500 Mobile uses 4 GB of GDDR6 on a 64-bit interface, yielding 128.0 GB/s. This 4x bandwidth difference is one of the largest separations between the two. Pixel and texture rates follow the same pattern: the Arc B770 reaches 307.2 GPixel/s and 614.4 GTexel/s, versus 64.80 GPixel/s and 129.6 GTexel/s for the RTX 500 Mobile.

Power and physical specifications also differ radically. The Arc B770 has a TDP of 225 W, is dual-slot, uses a 1x 6-pin plus 1x 8-pin power connector, and requires a 550 W suggested PSU. The RTX 500 Mobile is an IGP with a 35 W TDP, no power connectors, and no suggested PSU. Bus interface differs as well: PCIe 4.0 x16 for the Intel part versus PCIe 4.0 x8 for the NVIDIA part. Display outputs are another distinguishing factor: the Arc B770 provides 1x HDMI 2.1a and 3x DisplayPort 2.1, while the RTX 500 Mobile is described as portable device dependent.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API compatibility is identical. The RTX 500 Mobile is an active production part with a release date of 2024-02-25, while the Arc B770 has a release date of 2025-12-31. The Intel part's predecessor is Alchemist, while the NVIDIA part's predecessor is Ampere-MW and its successor is Blackwell-MW. The RTX 500 Mobile also has a stated transistor count of 18,900 million and a transistor density of 118.9M per mm², whereas the Arc B770's transistor count is unknown.

Where Each One Wins

Benchmark results are empty in the database, so the analysis relies on the recorded specification differences. The Arc B770 wins in every raw compute and throughput category. Its FP32 performance of 19.66 TFLOPS is more than double the RTX 500 Mobile's 8.294 TFLOPS. For FP16 workloads, the Arc B770's 39.32 TFLOPS is 4.74x the RTX 500 Mobile's 8.294 TFLOPS, making it vastly superior for half-precision compute tasks. The pixel rate of 307.2 GPixel/s versus 64.80 GPixel/s indicates the Arc B770 can fill framebuffers at nearly 5x the rate, which matters for high-resolution rendering and heavy post-processing. Texture rate of 614.4 GTexel/s versus 129.6 GTexel/s shows a similar 4.74x advantage for texture-heavy scenes.

Memory bandwidth is where the separation is most pronounced. With 512.0 GB/s, the Arc B770 has 4x the bandwidth of the RTX 500 Mobile's 128.0 GB/s. This directly impacts high-resolution textures, large data sets, and memory-intensive compute. The 16 GB capacity also allows the Arc B770 to hold far larger workloads in VRAM compared to the 4 GB of the RTX 500 Mobile, which may be limiting for modern games or AI inference at higher resolutions.

The RTX 500 Mobile wins in power efficiency and physical integration. At 35 W, it consumes less than one-sixth of the Arc B770's 225 W TDP. It is an IGP, meaning it can be integrated into compact mobile devices without dedicated power connectors or a separate PSU requirement. The Arc B770 requires a dual-slot cooler, a 550 W PSU, and 1x 6-pin plus 1x 8-pin connectors, making it unsuitable for thin-and-light laptops or small-form-factor devices. The RTX 500 Mobile's PCIe 4.0 x8 interface also allows for simpler system integration compared to the Arc B770's x16 interface, though the x16 does offer more bandwidth headroom.

The RTX 500 Mobile also has a definitive production status of active, while the Arc B770's production status is not specified in the database. The NVIDIA part also has a known successor, Blackwell-MW, while the Arc B770 has no listed successor. In terms of launch recency, the RTX 500 Mobile was released in February 2024, while the Arc B770 is dated at the end of 2025, suggesting the Intel part is a newer design despite lacking a formal production status.

FAQ

Q: Which GPU has higher compute throughput?

A: The Intel Arc B770 delivers 19.66 TFLOPS of FP32 and 39.32 TFLOPS of FP16, while the NVIDIA RTX 500 Mobile delivers 8.294 TFLOPS for both FP32 and FP16.

Q: How do memory capacities compare?

A: The Arc B770 has 16 GB of GDDR6 on a 256-bit bus, while the RTX 500 Mobile has 4 GB of GDDR6 on a 64-bit bus.

Q: What is the bandwidth difference?

A: The Arc B770 offers 512.0 GB/s, which is 4x the 128.0 GB/s of the RTX 500 Mobile.

Q: Which GPU is more power-efficient?

A: The RTX 500 Mobile has a 35 W TDP and no power connectors, while the Arc B770 has a 225 W TDP and requires a 1x 6-pin plus 1x 8-pin connector and a 550 W suggested PSU.

Q: Do both support the same graphics APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: Which GPU has more ray tracing cores?

A: The Arc B770 has 32 RT cores, double the 16 RT cores of the RTX 500 Mobile.

Q: What are the physical form factor differences?

A: The Arc B770 is dual-slot with 1x HDMI 2.1a and 3x DisplayPort 2.1 outputs, while the RTX 500 Mobile is an IGP with portable device dependent outputs.

Head-to-Head Benchmarks

The database records no head-to-head benchmark entries, but the specification data provides clear comparative metrics. The largest single advantage for the Intel Arc B770 is in FP16 compute. At 39.32 TFLOPS, it outperforms the RTX 500 Mobile's 8.294 TFLOPS by a factor of 4.74. This is meaningful for workloads that leverage half-precision, such as certain AI inference tasks and graphics pipelines that use FP16 for performance. The RTX 500 Mobile's FP16 is identical to its FP32 at 8.294 TFLOPS, indicating no half-precision acceleration.

The second-largest separation is in pixel throughput. The Arc B770's 307.2 GPixel/s is 4.74x the RTX 500 Mobile's 64.80 GPixel/s. This affects rasterization rates, particularly at high resolutions with anti-aliasing or multiple render targets. Texture rate follows the same multiplier: 614.4 GTexel/s versus 129.6 GTexel/s, again a 4.74x difference. This is directly relevant for texel-heavy scenes and texture filtering workloads.

Memory bandwidth is the third major divider. The Arc B770's 512.0 GB/s is exactly 4x the RTX 500 Mobile's 128.0 GB/s. For large textures, high-resolution framebuffers, or data-intensive compute kernels, this bandwidth gap can become a bottleneck for the NVIDIA part well before the Intel part saturates. The 16 GB versus 4 GB capacity difference compounds this, as the smaller VRAM on the RTX 500 Mobile may force spills to system memory in memory-constrained scenarios.

FP32 performance shows a 2.37x gap. The Arc B770 delivers 19.66 TFLOPS while the RTX 500 Mobile delivers 8.294 TFLOPS. This is the headline performance metric for general GPU compute. Shader unit counts align with this: 4096 versus 2048, exactly double. TMUs also double: 256 versus 64, though the ROP difference is 4x (128 versus 32), which explains the larger pixel rate gap relative to the shader count difference.

The RTX 500 Mobile has its own comparative advantage in power efficiency. At 35 W, it delivers 8.294 TFLOPS, which is 0.237 TFLOPS per watt. The Arc B770 uses 225 W for 19.66 TFLOPS, which is 0.087 TFLOPS per watt. The RTX 500 Mobile is 2.72x more efficient in FP32 per watt. This efficiency metric is crucial for battery-powered devices where sustained performance over time matters more than peak throughput.

Clock speeds also differ. The Arc B770 has a base clock of 2100 MHz and a boost of 2400 MHz, while the RTX 500 Mobile has a base of 1485 MHz and a boost of 2025 MHz. The Intel part has a 375 MHz higher boost clock, contributing to its higher throughput per shader. Memory clocks are identical at 2000 MHz with 16 Gbps effective, but the bus width difference creates the bandwidth disparity.

Die size and transistor details also favor the Intel part in absolute terms. The Arc B770's die is 368 mm² versus 159 mm² for the RTX 500 Mobile, a 2.31x larger silicon area. The RTX 500 Mobile has a known transistor count of 18,900 million and a density of 118.9M per mm², while the Arc B770's transistor count is unknown, so no direct comparison can be made. The larger die on the Arc B770 suggests a more complex design with more functional units, consistent with its higher shader, TMU, ROP, and RT core counts.

Release timing shows the Arc B770 is dated 2025-12-31, while the RTX 500 Mobile is dated 2024-02-25. The NVIDIA part has been available longer and is marked as active in production, while the Intel part's production status is not listed. The RTX 500 Mobile also has a defined successor in Blackwell-MW, while the Arc B770 has no successor listed, indicating it may be a terminal design in the Battlemage generation.